26. Siphonogorgia pendula Studer, 1889. 
(1) Crown — 8 — 10 horizontal rows of spicules. 
Points — a single pair of convergent spindles. 
(2) Verrucae resembling those of Spongodes, attached obliquely to the twig. The spicules of the 
outer wall project beyond the oral region of the polyp in a spinous fashion. 
(3) The anthocodiae cannot be wholly retracted into the verruca, but are shielded by the 
protecting bundle of spicules. 
(4) Canal walls thick with spicules. 
(5) Spicules of outer layers covered with warts ending in delicate spines. Spicules may be dark 
purplish red, pale rose or white. 
(6) Twigs bent towards the base of the stem. Naked main axis round, polyp-bearing branches 
grooved. Branches arising at an angle of 30 0 —40 °. 
Colour — coral-red, with white polyps. 
Locality: Bay of Amboina. 
Note. Var. ternatana Iviikenthal, 1896, differs from S. pendula Studer, in the following points : 
(1) the branches arising at right angles; 
(2) the absence of furrows on the branches; 
(3) the spicules being longitudinal on the branches, and not irregularly arranged as in S', pendula ; 
(4) the spicules of the branches being bigger than those of the stem ; 
(5) polyps arising from the main stem ; 
(6) the presence of spicules in the canal walls three times as large as elsewhere. 
Locality: Ternate. 
Var. ramosa Thomson and Russell, 1910, differs from S. pendula (Studer) in (1) its 
bushy habit; (2) the larger size of the polyps; (3) their heavier and more complex armature, 
(a third or fourth spindle may be inserted between the angle of the two main large ones of 
the points); (4) their longer stalks* (5) their different arrangement at the tips of the twigs. 
Locality : Providence. 
Var. indica Harrison, 1908, differs from Studer’s specimen in the immense size of the 
spicules of the partition walls. 
It is probably therefore the same variety as Kukenthal’s S. ternatana. 
Locality: Bay of Bengal. 
27. Siphonogorgia planoramosa (= Chironephthya planoramosa Harrison, 1908). 
(1) Crown — 8 transverse rows of spicules. 
Points — 3—5 spicules en chevron. 
(2) Not described. 
(3) Anthocodiae not retractile. 
(4) Not described. 
(5) Not described. 
(6) Branches nearly at right angles to the stem, inclined to bend downwards. 
Colour — base of stem rosy purple, rest of colony pure white. 
Locality: Admiralty Islands. 
